Pressing-machine



C. E. WAREAWAND G. N. LINK.

PRESSl-NG MACHINE.

APPLICATION FILED JULY 10, 1918.

1,374,261 Patented Apr. 12,1921.

3 SHEETS-SHEET 1.

c. E. WAREAM AND G N. LIN-K.

PRESSING MACHINE.

:APPLICATION FILED JULY 10, 1918. 1 3'74 261, Patented Apr. 12, 1921.

, v 3 SHEETS-SHEET 2.

1272022254723. M f M mumifi C. E. WAREAM AND G. N. LINK.

PRESSING MACHINE.

APFLlCATlON FILED JULY 10, 1918-v Patented Apr. 12, 1921.

3 SHEETS-SHEET 3.

onemzns a. wearer; Ann scones ii. 1.11m, or cmcmmrr,

OHIO, ASSIGNORS TO THE AMERICAN LAUNDRY MACHINERY COMPANY, OF NORWDOD,OHIO, A COB,-

ronarion or cure.

PRESSING-MACHINE.

Application filed. July 10,

To all-whom itmag concern:

Be it known that we, CHARLES E. VVAREAM and GEORGE N. LINK, citizens ofthe United States, residing at Cincinnati, in the county of Hamilton andState of Ohio, have in-- vented certain new and useful Improvements inPressing-Machines, of which the following is a specification.

This invention relates to pressing ma chilies, and more particularly towhat are known as small presses, such as are used for pressing orironing th cuffs or neckbands of shirts.

v The object of the invention is to provide an improved press of thecharacter described, in which more powerful pressure may be securedbetween the pressing members, and which press is of simple construction.is easy and safe to operate, and is provided with a convenient formofcontrol mechanism.

A further object of the invention is to pro vide a press of this kindembodying the usual control levers which in turn control the applicationof fluid pressure to the pressing members, thereby to secure any desiredpressing eii'ect.

Further objects of the invention are in part obvious and in part willappear more in detail hereinafter.

In the drawings, which represent one embodiment of the invention Figure1 is a front elevation of the upper portion of a pressing machineembodying the invention; Fig. 2 is a sectional elevation, from front torear, through the lower portion thereof; Fig. 3 is a rear view of thevalve devices. and the operating connection therefor; F 1g. 4 is adetail section on the line 4 1, Fig. 5; Fig. 5 is a plan view of thevalve mechanism; Fig. 6 is a cross section thereof onthe line 6-6, Fig.5; Fig. 7 is a detail plan view of the cap for the pressure cylinder;and Fig. 8 is a detail view of a modified form of piston.

It will, of course, be understood that the present invention isapplicable to any form of pressing machine, whether it be for pressingfabrics, garments, parts of garments, or the like, as the particularstyle and-arrangement of the pressing members are more or lessimmaterial.

Briefly described the press illustrated comprises a suitable frame1provided with:

upright arms 2 supporting a stationary pressing-member or bed 3, beneathwhich Specification of Letters Patent.

of the tom of the slot 22 the rod 5 and Patented Apr. 12, 1921..

1918. Serial No. 244,204.

is a coiiperating movable pressing member 4 carried on the upperend of arod or support 5 having vertical sliding movement in the frame. ither orboth of the two pressng members may be padded or have plain ironingsurfaces, as desired, and either or both thereof may be suitably heatedin any suitable manner such, as by steam, for eiample. The fabric,garment or portion of a garment to be pressed is placed between the twopressing members and subjected to pressure therebetween by upwardmovement of the rod 5 and lower pressing member, and the presentinvention now to be described is particularly concerned with themechanism or devices for producing operating movement ofthe rod 5.

Directly beneath the rod 5, and in axial alinement therewith, is ahollow cylinder 6 suitably supported in the frame, such as by the boltsor screws 7. Said cylinder is provided with depending ears 8 to supporta horizontal shaft 9 on which is pivoted the foot treadle 1O normallyheld in the position shown in Fig; 2 by a tension. spring 11 extendlngfrom said treadle to a stationary support 12 on the frame, said springbeing preferably adjustable as to tension by the means shown. The reararm 13 of said treadle is pivotally connected to'a head 14 having an ear15 in which is secured a link or rod 16 pivotally connected at itsopposite end to one arm of a bell crank lever 17 pivoted at 18 in thecylinder cap 19. The other arm bell crank leveris pivoted to a member 21provided with an elongated slot 22 to receive a pin 23 carried by acollar 24 adjustabl secured in any desired position to the r0 5, such asby set screw 25. Memhere 20 and 21 cooperate as a toggle. lVhen thefoot;trea,dle 10 is depressed thetoggle is straightened, and as the pin23 is at the hotthe pressing member 4' carried thereby are elevatedtoward the bed.

Suit-able means is also provided for looking the foot treadle in thepressure position, for which purpose it is provided with a beveled pin26 which cooperates with a detent 27 on a locking treadle 28 pivoted at29 in the frame and normally held in the position shown in Fig.= 2by thecompression spring. 30. When the main treadle .10 is depressed pin 26moves past the beveled end of detent 27, pgshing said detent out of theway and allowing it to move in behind the pin 26 and thereby hold themain treadle depressed. By pressing down on the release treadle 28 thedetent is released from the pin 26 to allow the spring 11 to return themain treadle to normal position.

In the cylinder 6 is a suitable piston 31 rigidly connected to the lowerend of rod '5, which, of course, slides through an opening in the cap19. Said piston is actuated by suitable fluid pressure, such as steam orcompressed air. When steam is used the piston 31 is preferably of theform shown in Fig. 2, being provided with suitable piston rings 32,while if the motive fluid is compressed air the piston may be of theform shown in Fig. 8, being provided with leather or other suitable cupwashers 33.

34 represents the casing of the valve devices for controlling the flowof fluid pressure to and from the motor cylinder. This casing ishollowed out to form a pressure chamber 35 communicating through apassage 36 and port 37 with a pipe 38 which may be connected to anysuitable source of fluid pressure. The flow of fluid pressure to saidpressure chamber is controlled by an adjustable valve member 39cooperating with a seat 40 at the port 37, the stem41 of said valvebeing threaded into a plug 42 provided with a stufling -box 42. Byrotating the valve stem the flow of fluid pressure to chamber 35 ma beincreased or diminished, as desired. ressure chamber 35 communicatesthrough a port 43 with a passage 44 leading outwardly throughanextension 45 of the valve casing, and which extension is provided witha flange 46 for securing the valve casing to the cylinder 6, such as bythe screws 47, in. which position passage 44 communicates with a passage48 leading to the pressure chamber of the motor cylinder. Passage 44also communi cates with an exhaust chamber 44 which in turn communicatesby way of a port 49 with a passage 50, to which is connected a pipe 51leading to the sewer or to any suitable exhaust point. The two ports 43and 49 are respectively controlled by valve mem-' bers 52, 53, carriedrespectively by rods 54, 55 having vertical sliding movement in glandstructures 56 carried by the valve casing. Both of the Valve rods areconnected to a lever 57, rod 55 to one end of said lever and rod 54 toits middle portion, as shown in lFi 3, the opposite end of said leverbeing bi urcated and connected to a pin'58 in a collar 59 having slidingmovement on a rod 60. Said rod is threaded at its upper and lower ends,its lower end being screwed into and secured by the locking nut 61 to aclevis 62 pivoted to the head 14. On said rod are two springs-63 oneabove and one below the collar 59, the pressure of said springs uponsaid collar seat.

being adjustable by the lock nuts 64. Obviously, collar 59 and thecotiperating springs 63 serve as a yielding connection between rod 60and the lever 57.

W hen the motive fluid is compressed air relief is afforded from thechamber in the cylinder above the piston by a suitable vent, while ifthe motive fluid is steam the cap 19 preferably has an outlet port 65 towhich is connected a pipe 66 communicat-' pressing member 4. The treadlemovementbrings the pressing members fairly close together and may evenproduce sufficient pressing contact to hold the work therebetween. Thefinal heavy pressure is produced by the motor piston.

The chamber in the motor cylinder above the piston is open to exhausteither through a vent port or byway of the pipe 66. When treadle 10 isin its upper position the valve devices are in the position shown inFig. 3, valve 53 being'raised from its seat and valve 52 being closedupon its seat. Communication is therefore cut off between the motorcylinder and pressure chamber 35 and the motor cylinder is open toexhaust.

through the port 49. As the pressure effective in chamber 35 holds the vlve 52 to its, seat valve stem 54 forms a ulcrum for the lever 57. Thefirst motion of treadle 10 therefore turns lever 57 about its middlepoint and closes valve 53. Further downward motion of treadle 10compresses the lower spring 63, until finally the pressure of saidspring becomes suflicient to overcome the pressure holding valve 52 toit's Consequently valve 52 is suddenly opened, allowing fluid pressureto flow from the source to the motor cylinder, whose piston is raised bythe fluid pressure and therefore applies heavy pressure to the garment.Flow of fluid pressure is not permitted until the pressing members arein fairly close contact, so that the operator will have necessarilywithdrawn his fingers from be-- will. not

tween the pressing members and have them crushed.

During the operation of the motor pis- 12a ton the pins 23 travelupwardly in the slot I 22, but not entirely to the upper end of emuelseat by the pressure in chamber 44 and therefore forms a fulcrum for thelever 57. The downward motion of head 14 therefore seats valve 52 andfinally the pressure of the upper spring 63 becomes sufficient toovercome the pressure on valve 53, so that the lever 57 is turned stillfurther and valve 53 opens. This allows the fluid pressure in the motorcylinder to flow to exhaust and the weight of the lower pressing membermoves it downwardly to normal position.

W'hat we claim is:

1. In a press, a frame, a stationary pressing member carried thereby, alower pressing member guided for movement vertically into pressingengagement with the stationary member, an operating shaft mountedvertically in the frame and operatively connected to said lower pressingmember, a fluid cylinder and piston motor in alinement with saidoperating shaft and having connections therewith 'for directly operatingthe same, treadle mechanism for moving said lower pressing member intoengagement with the stationary member, and means for controlling sa'idfluid cylinder and piston motor.

2. In a press, a frame, a stationary pressing member carried thereby, alower pressing member guided for movement vertically into pressingengagement with the stationary member, an operating shaft mountedvertically in the frame and operatively connected to said lower pressingmember, a fluid cylinder and piston motor in alinement with saidoperating shaft and having connections therewith for directly'operatingthe same, treadle mechanism for moving said lower pressing member intoengagement with the stationary member, and a controller adapted foractuation by said treadle for causing said motor to operate after. thepress is closed. v 3. In a press, a frame, astationary pressing membercarried thereby, a lower pressing member guided for movement verticallyinto pressing engagement with the stationary member, a treadle pinmounted transversely in said frame and in substantially verticalalinement with said pressing member, an operating shaft mountedvertically in the frame and operatively connected to said lower pressingmember, a motor cylinder arranged in said frame and connected to saidtreadle pin, a piston arranged in said cylinder and operativelyconnected to and in alinement with said shaft, a treadle mounted uponsaid treadle pin, connections between said treadle and said shaft forraising the same to close the press, and a controller for said motor.

4. In a press, a frame, a stationary pressing member carried thereby, alower press: ing member guided for movement vertically into pressingengagement with the stationary member, a treadle pin mountedtransversely in said frame and in substantially vertical. alinement withsaid pressing member, anoperatin shaft mounted vertically in the frameangl operatively connected 'to said lower pressing member, a motorcylinder arranged in said frame and connected to said treadle pin, apiston arranged in said cylinder and operatively connected to and inalinement with said shaft, a treadle mounted upon said treadle pin, alever mounted upon said cylinder, connections between said lever andsaid operating shaft, connections between said lever and said treadle,and a controller for said motor.

5. In a press, a frame, a stationary press ing member carried thereby, alower pressing member guided for movement vertically into pressingengagement with the stationary member, a treadle pin mounted transversely in said frame and in substantially vertical alinement with saidpressing member, an operating shaft mounted vertically in the frame andoperatively connected to said lower pressing member, a motor cylinderarranged in said frame and connected to said treadle pin, a pistonarranged in said cylinder and operatively connected to and in alinementwith said shaft, a treadle mounted uponsaid treadle pin, a lever mountedupon said cylinder, connections between said lever and said operatingshaft, connections between said lever and said treadle, and a controllerfor said motor actuated by said treadle.

In testimony whereof we aflix'our signatu es.

r CHARLES E. 'WAREAM.

GEORGE N. LINK.

